Post by
Neil »
https://forums.nicoclub.com/neil-u15642.html
Sat Sep 27, 2008 3:18 pm
The stock heat shield doesn't interfere with anything and even though they can get ugly they're useful enough to be worth not getting rid of.
The T fitting in the above pic without a hose on it is supposed to be routed to your intake pipe between the MAF and turbo. That allows the crank-case fumes to be recirculated and burned off, but if you have excessive blow by then you will cake the inside of your intercooler with oily sludge in no time. I personally have it routed to a catch can instead of the intake with a breather filter on the "out" port of the catch can. The breather filter is pretty well saturated with oil vapors but it took 6 months or so for that to happen. I'd rather let them collect there than in my intercooler piping.
And yes, that hard line behind the cylinder head is the coolant return line from the turbo. Is there something jammed into the end of the pipe? it's Very important that it get's hooked up properly. There should be a straight ~6" rubber hose that connects it to another hard line back there.